Spraying device



NOV. 20, 1934. B KARTER 7 1,981,623

SPRAYING DEVICE Filed July 18, 1935 I 3 2 c g X INVENTOR. h. B. KARTER;

syi fgJbw ATTORNEYS.

l atent ecl Nov. 20, 1934 UNITED STATES PATENT 1,981,623 SPRAYING DEVICEHarry B. Karter, Garden City, N. Y.

Application July 18, 1933, ScrialNo. 680,928

13 Claims. .(Cl. 299-83) My invention relates to spray devices of thetype employed for emitting an aqueous suspension or solution of achemical substance, such as, a

disinfectant, an insecticide, a water color etc.

An object of my invention is the provision of a spray device of thecharacter described which can be attached to the ordinary garden hoseand in which the water, in approaching the nozzle, rotates an elementcomposed of the substance to be used in the spray, thereby forming asolution or suspension of that substance depending upon its solubilityin water.

A further object of my invention is the provision in such a device of arotatable element of such configuration that the solution or suspensionformed by the passage of water thereover will be of substantiallyuniform concentration until the substance is entirely consumed.

An additional object of my invention is to so 20- construct therotatable chemical element that the breaking off of large pieces thereofand the consequent clogging of the spray nozzle will be practicallyeliminated and that the rotation t r bedded in -the-surface of this coreand in the thereof will be made certain. I

Still another object of my invention is the provision of means in adevice of the character described for preventing the clogging of thespray nozzle by any small lumps of chemical substance which might becomeseparated from'the rotatable r need not be normal to the core, but canbe set element. Further objects and advantages of my invention willappear from the following description of the accompanying drawing inwhich:

Fig. 1 is a plan View of my spray devicewith l filling the mold of apaste of the desired chemical portions thereof in section.

Fig. 2 is a side elevation of my device with the cover separatedtherefrom and partly in section for the sake of clearness.

Fig. 3 is a section taken through the axis of i 40 the framework of therotatable element.

Fig. 4 is a plan view of the framework of the rotatable element and Fig.5 is a plan view of a rotatable element of different configuration.Referring to the drawing in detail, 1 represents a circular casinghaving a spindle 2 mounted at its center, a water inlet 3 arranged todirect a stream of water in a direction chordal to the circular casing1, said inlet being supplied with water by a pipe 4 which has a couplingnut 5 to connect it with an ordinary garden hose and a stop cock 6 forturning the water on and off. Any conventional type of valve can beemployed in place of stop cock 6. A handle 7 ofany suitableconfiguration is arranged between the pipe 4 and the casing 1.

Casing 1 has a water outlet 8 at apoint more than 90 removed from thewater inlet. The longitudinal axis of this water outlet is normal to thecasing 1. Mounted in the outlet 8 in a plane spaced from thecircumference of the casing 1 is a'screen 12. The space between thescreen and the interior of the casing 1 forms a chamber wherein anyparticles of chemical which may break away from the paddle wheel can beretained out of the path of travel of the paddle wheel until they arebroken up or dissolved by the water. The screen prevents these particlesfrom entering into and clogging the nozzle 14 which may be of anyconventional type and which is attached to a sleeve 13 mounted on theoutlet 8.

Mounted on the spindle 2 is a rotatable element 9 of the chemicalsubstance to be introduced into the waterJ This element, in itspreferred form, has the-shape of a paddle wheel.

-Thiselement has a metal core 10, preferably made at an angle theretoon, if desired. H

The rotatable element of chemical substance is generally molded. Thisi'saccomplished by or arranged helically theresubstance, such as,arsenate of lead or a mixture of arsenate of lead and sulphate ofnicotine or any of the common fertilizers, such as, mixed nitrates andphosphates of the alkali metals and ammonia or any water color,kalsomine or whiting etc. The framework composed of core 10 and vanes 11is immersed in the paste centrally of the mold and the paste ispermitted to dry thereon. The moulding is facilitated by the employmentof pressure. I i

The circular casing 1 is provided with a cover 15, which carries'a glassplate 16, which makes it possible to tell when the chemical substance onthe rotatable element is" consumed.

In the modification shown in Fig. 5 the vanes of the paddle wheel,instead of being fiat pieces of metal, are constructed in the form ofcages 1'7. The sides of these cages are made of 'a sheet of perforatedmetal or screen which is bent in the manner shown and the ends of whichare brought together andinserted in the soft metal core 18.

-The bottoms of the cages are likewise made of perforated metal orscreen and can be made integral with the sides. Each cage carries ablock of chemical substance. When this construction is employed thepaddle wheel can be made as a fixed element in the spray device, itbeing necessary only to replace the blocks of chemical substance. Thetops of the cages are open, the blocks, being prevented from leaving thecages by the cover plate 16.

It is to be understood that there is no limitation'with regard to thematerial of which the rotatable chemical element is to be made. Any

material which is to be employed in an aqueous spray and which dissolvesin or suspends in I element.

water can be utilized.

It is to be further understood that there is combination, a mixingchamber, a water inlet in no restriction upon the configuration of ,therotatable element except that it must be such that it presentssubstantially the same surfaee at all stages of wear. In'additiomit mustbe borne in'mind that regardless of what type of device is used, theinlet orifice must have a smaller diameter than the outlet orifice. Ofcourse, the sizeof the outlet orifice can be regulated by adjustmentofthe nozzle. As the size of the outlet orifice approaches the size of theinlet orifice the spray becomes finer, but the distance it will travelbecomes smaller. Conversely, as the outlet orifice becomes larger, thedistance travelled bythe spray becomes larger.

Having thus described the nature and objects of my invention andillustrated preferred embodiments thereof, which embodiments are to betaken as illustrative rather than limitative, what I claim as new anduseful and desire to secure by Letters Patent is: v V

1. In a device. of the character described, in combination, a mixingchamber, awater inlet in said chambenawater outlet spaced from saidwater inlet and a rotatable element mounted in:

said mixing chamber between said water inlet and said water outletcomprising a metal core :1 provided withvaneasaid core and vanes beingcovered with a chemical substance adapted to be dispersed in water andsaid water inlet being so arranged with respect to said vanes that theflow of water from said inlet impinges on {said vanes successivelythereby causing rotation of the rotatable element. 1 h

2. In a device of the character described, in combination, a mixingchamber, a water inlet in said chamber, a water outlet spaced from saidwater inlet and a rotatable element mounted in said mixing chamberbetweensaid water inlet and said water outlet comprising a metal coreprovided with perforated metal vanes, said core and perforated metalvanesbeing covered with a chemical substance adapted to be dispersed inwater and said water inletbeing so arranged with respect to said vanesthat the flow of water from said inlet impinges on said vanes sucsaidchamber, a water outlet spaced from said water inlet and a rotatableelement mounted in said mixing chamber between said water inlet and saidwater outlet comprising a core of soft heavy metal provided with vanes,said core and vanes being covered with a chemical substance adapted tobedispersed in water and said water inlet being so arranged. with respectto said vanes that the flow of water from said inlet impinges on saidvanes successively thereby causing rotation of the rotatable element.

4. In a device of the character described, in combination, a mixingchamber, a water inlet in said chamber, a water outlet spaced from saidWater inlet and a rotatable element mounted in said mixing chamberbetween said water inlet and said water outlet comprising a core of softheavy metal provided with perforated light metal vanes, said core andvanes being covered with a chemical substance adapted to be dispersed inwater and said water inlet being so arranged with respect to said vanesthat the flow of water from said inlet impinges on said vanessuccessivelythereby causing rotation of the rotatable 5. In a device ofthe character described, in

said chamber, a water outlet spaced from said water inlet and arotatable paddle wheel mounted in said mixing chamber between said waterinlet and said Water outlet comprising a metal core provided with vanesconstituting paddles, said core and vanes being covered with asubstantially uniform layer of a chemical substance adapted to bedispersed in water and said water inlet being so arranged with respectto said vanes that the flow of water from said inlet impinges on saidvanes successively thereby causing rotation of the rotatable element. a

6. In a device of the character described, in combination, a mixingchamber, a water inlet in said chamber, a water outlet spaced from saidwater inlet and a rotatable paddle wheel mounted in said mixing chamberbetween said water inlet and said water outlet comprisinga metal coreprovided with perforated metal vanes constituting paddles, said core andvanes being covered with a substantially uniform layer of a chemicalsubstance adapted to be dispersed in water and said water inlet being soarranged with respect to said vanes that the flow of water from saidinlet impinges on said vanes s uccessively thereby causing rotation ofthe rotatableelement.

'7. In a; device of the character described, in combination, a mixingchamber, a water inlet in said chamber, a water outlet spaced from saidwater inlet and a rotatable paddle wheel mounted in said mixing chamberbetween said water inlet 1.25 and said water outlet comprising a core ofsoft heavy metal provided with vanes constituting paddles, saidcoreandvanesbeing covered with asubstantially uniform layer of. a chemicalsubstance adapted to be dispersed in water and said 133 water inletbeing so arrangedwith respect to said vanes that the flow of water fromsaid inlet impinges on said vanes successively thereby causing rotationof therotatable element.

8. As an article of manufacture, a; rotatable 135 body comprising ametallic axialmember ,provided with vanes and a coating on said axialmember and vanescompose'd of a chemical sub'-' stance adapted to be.dispersed in'water.'-

9. As an article of manufacture, a rotatable body comprising an axialmember of soft heavy metal provided with vanes and a coating on saidaxial member and vanes composed of a chemical substance adapted to bedispersed in water.

10. As an article of manufacture, a rotatable body comprising an axialmember of soft heavy metal provided with perforated light metal variesand a coating on said axial member and vanes composed of a chemicalsubstance adapted to be dispe'rsedinwater. 1 1

11. As an article of manufacture, a paddle wheel having a metal core andhaving its paddles composed of a chemical substance adapted to bedispersed in water and provided with internal substantially centrallylocated reenforcement in the form of vanes extending from said metalcore.

12. As an article of manufacture, a paddle wheel having a soft heavymetal core and having its 7 paddles composed of a chemical substanceadapted to be dispersed in water and provided with internalsubstantially centrally located reenforce- HARRY B. KARTER.

